US3183391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielding of electron gun from vaporized getter by decomposable foil over electrode aperture
Assignee: RCA Corp
•
Filing: 1960-12-16
•
Granted: 1965-05-11
•
Expires: 1980-12-16
Abstract
No abstract record available.
Inventors
- 👤 Robert E Benway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:49
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/94; H01J41/00; H01J41/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
AN ELECTRON GUN COMPRISING A PLURALITY OF ALIGNED ELECTRODES INCLUDING AN APERTURED END ELECTRODE, A METAL FOIL OVERLYING THE APERTURE OF SAID END ELECTRODE, AND A GETTER DISPOSED ON THE SIDE OF SAID METAL FOIL OPPOSITE THE OTHER ELECTRODES OF SAID GUN.
Claim 2
Dependent Claim
42 words
AN ELECTRON GUN COMPRISING A PLURALITY OF ALIGNED ELECTRODES INCLUDING AN APERTURED END ELECTRODE, A METAL FOIL OVERLYING THE APERTURE OF SAID END ELECTRODE, AND A GETTER DISPOSED ON THE SIDE OF SAID METAL FOIL OPPOSITE THE OTHER ELECTRODES OF SAID GUN.
References Cited (Backward Citations)
US2153616A
Cited
US2154368A
Cited
US2128581A
Cited
US2267714A
Cited
FR884289A
Cited
US2774645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |